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07. 布点经验
! Y1 H' e+ e. R6 [$ N4 r6 ~我是做开关电源的,所以就讲一下开关电源的一点经验:
) B$ F2 g% g% U5 x布点总的原则是:觉得那里发热严重,就布那里,还有一些关键元件等,
: P" g+ m, a8 s4 `举例如下:; l6 T, U" j- n9 U, k
1.Transformer coil. j. P& w# v/ e- Q0 M
2.Transformer core
4 Q2 F' ?% N/ k# t3.电源滤波的电解电容' J' h: |7 P+ o1 A
4.X电容
4 ^) h8 t& F& |! z1 m* F5.Y电容
5 [6 K- Z) ]5 J" g9 o/ M( C: S6.Optocouple
4 w4 W- {( q- Z9 Y" ~7.pcb near 开关管; O. U! y v6 S( V$ u
8.pcb under transformer" q9 z% z/ I! Y- X: `
9.共模电感
* |, \5 X( U6 p10.Input wire6 B0 Y, C- Z# @' l- x; Y$ m
11.Output cable7 H& g8 J; V* F5 n- Q6 d: z# L- C- A
12.Enclosure inside near transformer
6 ~3 n; p, W7 {5 [. ^& D1 f' G X13.Enclosure outside near transformer
$ R1 ~; X' V; ?$ o% ?8 |7 k14.Enclosure inside between blades |
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